128230408975

素因数分解:

$5^2\times {\mathrm{281}}^1\times {\mathrm{881}}^1\times {\mathrm{20719}}^1$

素因数の和:21891

約数の個数: 24

約数和(自身を含む): 159760399680

約数和(自身を除く): 31529990705

約数列:

[1, 5, 25, 281, 881, 1405, 4405, 7025, 20719, 22025, 103595, 247561, 517975, 1237805, 5822039, 6189025, 18253439, 29110195, 91267195, 145550975, 456335975, 5129216359, 25646081795, 128230408975]

約数ペア:

[(1, 128230408975), (5, 25646081795), (25, 5129216359), (281, 456335975), (881, 145550975), (1405, 91267195), (4405, 29110195), (7025, 18253439), (20719, 6189025), (22025, 5822039), (103595, 1237805), (247561, 517975)]